The Dutch government has banned air travel from the UK due to fears over a new strain of the coronavirus.
The move comes after health authorities in the Netherlands confirmed at least one case of the same strain that has prompted parts of the UK to return to lockdown rules.
The Dutch health ministry said the case there had been identified at the beginning of December and is being investigated.
Meanwhile, it said that “any introduction of this virus strain from the United Kingdom should be limited as much as possible by limiting or controlling passenger movements from the United Kingdom as much as possible”.
The air traffic ban for passengers from the UK begins at 6am on 20 December and will apply until 1 January at the latest.
The Dutch government said: “The cabinet is closely monitoring the developments of the COVID-19 virus abroad and is investigating the possibilities for additional measures for other modes of transport.
“In the coming days, it will, in close collaboration with other EU member states, look into the possibilities of further restricting imports of the virus from the United Kingdom.
“It is again emphasised that travelling abroad poses a substantial risk for the spread of the COVID-19 virus. That is why: do not travel, unless strictly necessary.”
The new strain of coronavirus – known as VUI 2020/01 – is believed to spread more quickly than the original strain and is thought to be the reason for rapidly rising infection rates in the South East of England.
Prime Minister Boris Johnson warned on Saturday that the new strain might be “up to 70% more transmissible”.
“While we are fairly certain the variant is transmitted more quickly, there is no evidence to suggest that it is more lethal or causes more severe illness,” the prime minister said.
“Equally there is no evidence to suggest the vaccine will be any less effective against the new variant,” he said.
Sir Patrick Vallance, the government’s chief scientific adviser, said that by December over 60% of infections in the capital had been the new variant, which is thought to have emerged in mid-September.
Mr Johnson announced that millions of people in London and many parts of the South East will not be allowed to mix with other households at Christmas as they come under a new Tier 4 level of restrictions from Sunday.